Oil prices rise $1, on course for weekly gain

LONDON (Reuters) - Oil prices rose on Friday and were on track for their first weekly gain since early January as investors bet the economic impact of the coronavirus would be short-lived and hoped for further Chinese central bank stimulus to tackle any slowdown.Brent crude was up $1.05 cents or 1.9% at $57.39 a barrel by 1437 GMT. It has risen 5.4% since last Friday, its first weekly increase in six weeks. U.S. West Texas Intermediate (WTI) was 74 cents or 1.4% higher at $52.16 a barrel, up..